204314310221 has 4 divisors (see below), whose sum is σ = 233502068832. Its totient is φ = 175126551612.

The previous prime is 204314310199. The next prime is 204314310287. The reversal of 204314310221 is 122013413402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204314310221 - 2³⁰ = 203240568397 is a prime.

It is a super-2 number, since 2×204314310221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204314510221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14593879295 + ... + 14593879308.

It is an arithmetic number, because the mean of its divisors is an integer number (58375517208).

Almost surely, 2^204314310221 is an apocalyptic number.

It is an amenable number.

204314310221 is a deficient number, since it is larger than the sum of its proper divisors (29187758611).

204314310221 is an equidigital number, since it uses as much as digits as its factorization.

204314310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29187758610.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 204314310221 its reverse (122013413402), we get a palindrome (326327723623).

The spelling of 204314310221 in words is "two hundred four billion, three hundred fourteen million, three hundred ten thousand, two hundred twenty-one".